51105556050 has 24 divisors (see below), whose sum is σ = 126741779376. Its totient is φ = 13628148240.

The previous prime is 51105556039. The next prime is 51105556063. The reversal of 51105556050 is 5065550115.

It is a super-2 number, since 2×51105556050² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170351704 + ... + 170352003.

It is an arithmetic number, because the mean of its divisors is an integer number (5280907474).

Almost surely, 2^51105556050 is an apocalyptic number.

51105556050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51105556050 is an abundant number, since it is smaller than the sum of its proper divisors (75636223326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51105556050 is a wasteful number, since it uses less digits than its factorization.

51105556050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340703722 (or 340703717 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 51105556050 in words is "fifty-one billion, one hundred five million, five hundred fifty-six thousand, fifty".